cậy cục * ☊ 
to painstakingly entreat (influential people) for a favor * ☊ cực nhọc * ☊ hard, painstaking, burdensome, tedious * ☊ kỹ càng * ☊ careful, thorough, painstaking * ☊ mẫn cán * ☊ diligent, painstaking * ☊ nắn nót * ☊ write painstakingly * ☊ 
painstaking * Work Describing work